Figure 9b: Selectivity study: capacitive responses from DNA-sensor chip with immobilized 30-mer E. coli 16S rDNA, following injection of unamplified whole genomic DNA samples at concentration range corresponding to 101 to 105 cell ml-1 of E. coli and L. reuteri, at working (hybridization) temperature of 30°C, and 30% formamide in the mobile phase.